Project this screen in your classroom and add widgets fo use with your class.
Never throw away an empty plastic ball point pen case. Deane and Rob show how to turn a pen case into an all-purpose 13cm rule (or ruler).
Rob shows a simple version of solitaire which uses dice, and it's an excellent way to brush up on your mental arithmetic.
Can you stack dominos so that the top one hangs over the edge by more than its own length?